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Webra 91 Dynamix Throat Size

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Old 06-05-2014, 01:01 AM
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Default Webra 91 Dynamix Throat Size

Anyone have a Webra 91 with original Dynamix carb they can measure the intake diameter for me that is in the throttle slide? Thanks, I have no reference what was supplied with it. I have one with the TN II MC and want to swap out.

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Last edited by jetpack; 06-05-2014 at 01:04 AM.
Old 06-05-2014, 03:03 AM
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JP, I'll fix you right up in a few minutes.
Old 06-05-2014, 03:27 AM
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Thanks, Hobbsy


I'm almost ready to put this one back together. It came with a monster 11mm TN II MC carb. I have a full range of Dynamix, but the largest standard one I have is only 7.5mm diameter.

I have an old magazine review which details the Dynamix at 43 square millimeters of area, but no diameter. I tried to convert it and came up with 7.3mm diameter, but compared to the 11mm TN carb, that's way small. It got me very skeptical wondering...


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Old 06-05-2014, 04:03 AM
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Same here my Dyna mix is 15mm neck diameter and 7.5mm venturi.
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Old 06-05-2014, 04:38 AM
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Well thats good news! I dont have to hope for one to turn up on evilbay or bore one out.

I appreciate your time, Hobbsy. Thank you for your help. I can stop thinking about it now.

All I need now is that stupid collar adapter to step up to 15mm.

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